Acceleration of cosmic-ray electrons by large-scale galactic spiral shocks - an observational report

Details Acceleration of cosmic-ray electrons by large-scale galactic spiral shocks - an observational report Acceleration of cosmic-ray electrons by large-scale galactic spiral shocks - an observational report

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.156..195u&link_type=abstract

(Instituto de Astrofisica de Canarias and Comision Interministerial de Ciencia y Tecnologia, Summer School on Evolutionary Pheno

Astronomy and Astrophysics

Astrophysics

3

Cosmic Rays, Electron Acceleration, Shock Waves, Spiral Galaxies, Brightness Temperature, Density Wave Model, Radio Emission, Relativistic Electron Beams, Star Formation

Scientific paper

The hypothesis that large-scale shocks accompanying spiral density waves are the main sources of cosmic-ray electrons for whole galactic disks has been tested utilizing results of 10.7 GHz observations of spiral galaxies. It is suggested that the 10.7 GHz emission of galactic disks is largely controlled by star-forming processes, and that large-scale shocks apparently play a minor role.

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